NULL pointer dereference in Python
CVE-2019-5010
An exploitable denial-of-service vulnerability exists in the X509 certificate parser of Python.org Python 2.7.11 / 3.6.6. A specially crafted X509 certificate can cause a NULL pointer dereference, resulting in a denial of service. An attacker can initiate or accept TLS connections using crafted certificates to trigger this vulnerability.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.207 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.207 · newest: 0.207 · change: 0.000
Affected products
- Python
- Debian Linux — versions 9.0
- openSUSE Leap — versions 15.1
- Red Hat Enterprise Linux — versions 8.0
- Red Hat Enterprise Linux Eus — versions 8.1, 8.2, 8.4
- Red Hat Enterprise Linux Server Aus — versions 8.2, 8.4, 8.6
- Red Hat Enterprise Linux Server Tus — versions 8.2, 8.4, 8.6
- Python — versions Python.org CPython 2.7.11 Python.org CPython 3.6.6 Python.org CPython 3.5.2 Python.org CPython 3 master at 480833808e918a1dcebbbcfd07d5a8de3c5c2a66
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHSA-2019:3520 (vendor-advisory, Third Party Advisory)
- access.redhat.com/errata/RHSA-2019:3725 (vendor-advisory, Third Party Advisory)
- lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html (vendor-advisory, Mailing List, Third Party Advisory)
- security.gentoo.org/glsa/202003-26 (vendor-advisory, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2020/07/msg00011.html (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e6… (mailing-list)
- lists.debian.org/debian-lts-announce/2020/08/msg00034.html (mailing-list, Mailing List, Third Party Advisory)
- talosintelligence.com/vulnerability_reports/TALOS-2019-0758 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2019-5010?
- CVE-2019-5010 is a high-severity vulnerability in Python, classified under NULL Pointer Dereference. CVSS score: 7.5/10. Published 2019-10-31.
- How severe is CVE-2019-5010?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2019-5010 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.